Abstract
Two silicone coatings have been evaluated for barnacle adhesion. One coating is an unfilled hydrosilation cured polydimethylsiloxane (PDMS) network, while the other is a room temperature vulcanized (RTV), filled, ethoxysiloxane cured PDMS elastomer, RTV11†. The adhesion strength of one species of barnacle, Balanus eburneus, to the hydrosilation coatings is in the range of 0.37-0.60 kg cm-2 while the corresponding range for RTV11 is 0.64-0.90 kg cm-2. The easier release of B. eburneus from the hydrosilation cured network compared to RTV11 is discussed in relationship to differences in bulk and surface properties. Preliminary results suggest bulk modulus may be the most important parameter in determining barnacle adhesion strength. In light or mechanical property analysis, a re-evaluation of surface properties and chemical stability is presented.
| Original language | English |
|---|---|
| Pages (from-to) | 277-288 |
| Number of pages | 12 |
| Journal | Biofouling |
| Volume | 16 |
| Issue number | 2-4 |
| DOIs | |
| State | Published - 2000 |
Funding
KJWis grateful for office of Naval Research(ONR) support through the ROPO Program (Research Opportunities for Program Officers) and to SERDP funding (Strategic Environmental Research and Development Program). GS thanks the ONR for support and thanks Angela Cook, Chris Kavanagh, Brett Kovach, and Mike Schultz who made many of the measurements reported herein. The authors also express their appreciation to Dr Mark Palmer, Mechanical Engineering Department, School of Engineering, Virginia Commonwealth University, for his critical review and contribution to the modulus discussion presented here.
Keywords
- Barnacle adhesion
- Non-toxic fouling release